Gate-valve.



PATENTED NOV. 12,1907.

0. A. CLAFLIN.

GATE VALVE.

APPLICATION FILED MAY 7, 1906.

L 4 6 M1 m 4 5 Z wMW m 73 6 e m, 5 m Va w M u 6 Q 0 no 7 7 3 7M arZeSJ.

No. 871,085. PATENTED NOV. 12, 1907.

.- C. A. OLAPLIN.

2 SHEETS-SHEET 2.

10 flax/920%, 6 t CkarZsQJQ C (6 56 orrnn sfrn rns ...PAT enrich.

CHARLES A. OLAFLIN, OF MEDFORD, MASSACHUSETTS.

GATE-VALVE.

Specification of Letters Patent.

I Application filed May '7 To all whom it may concern:

Be it known that I, G mmes A. CLAFLIN, of Med ford, in the county ot Middlesex and State of Massachusetts, have nvented certain new and useful improvernents in Gate-Valves, of which the following is a specification.

This invention relates to a valve oi the gate type, in which the gate comprises oppositely-facing disks, mounted on a carrier, and adapted to stand at differ- IO entinclinations, so that they will have a wedgedike action in coming to a bearing on their seats, their outer aces conforming to oppositely inclined seats, which are separated by a tapering or wedge-shaped space.

My invention is embodied in a gatevalve of the re newablc tapered seat type, and its gate has renewable adjustable disks, said disks being so arranged and held in suspension on the disk carrier, that when the parts of'the gate are assembled and moved into contact with the valve seats to close the passage, the gate constitutes an adjustable wedge adapted to conform to any inclinations that the valve seats may have.

The invention has for its object, first to provide certain improvements relating to the construction of the valve casing or body, the said improvements looking to a separable connection between the seats oi the gatedisks and the body of the casing, permitting insertion and removal of the valve seats from the ends 01' the casing, so that the said seats may be readily renewed and repaired.

The invention also has for its object to provide certain improvements in the construction of the carrier and disks which constitute the gate 01' a valve of this type, the said improvements looking to the convenient assemblage and separation of the parts of the gate,

and their retention in operative relation to each other,

as well as simplification oi the construction and increased effectiveness of operation.

The invention consists in the several improvements "Whirii I will now proceed to describe and claim.

45. sents a side elevation of the gate detached from the casing, Fig. 5 represents a side view of the diskwarrier. Fig. 6 represents an end view of the disk-carry 1g portion 01 the gate. Fig. 7 represents a section on li 7-7 of Fig. 1. Fig. 8 represents a sectional view 5-0- of wire-tutu.

The 5' me letters of reference indicate the same parts in all the figures.

In the drawings, 12 represents a valve-casing, which is provided with a valve chamber 13 and with alined openings or passagesttlLlO at opposite ends oi the Patented Novf 12, 1907.

1906- Serial ND- 315.501.

valve chamber for the flow of the material to be conducted, and [or the reception of detachable seat sleeves 14 14, the inner ends of which are beveled, and form seats l5 15 for the valve-disks ll; 16 oi the sliding gate. The seat sleeves 14 are provided at their outer ends with flanges 17, which are seated on shoulders 11 formed by enlarging the outer portions of the openings 10, the sleeves being movable endwise into the openings '10 until the flanges 17 are seated on the shoulders 11. The said flanges have dowels l8 which interlock with recesses or sockets l9, formed in the casing, the said dowels and sockets positively locking the seat sleeves 14 against turning in the casing. Said dowels and sockets, however, do not interfere with the withdrawal of the seat sleeves outward from the ends of the casing when the couplings are removed, and they also render it certain that when new sleeves or freshly ground sleeves are inserted, they will be placed and positively held with their inclined ends in proper position to (o-act with the valves. And from this position they cannot be disturbed by any turning or rotary movement. The casing 12 is provided with suitable means for confining the sleeves 14 against outward movement.

In the constructionshown in Fig. 1 the ends of the casing are provided with annular extensions 25, which form the enlarged outer portions of the openings 10, and are both internally and externally threaded, the internal threads engaging annular seat retainers 2G,

sleeves l4, and hold the seat sleeves in place, should the coupling nut 30 and tail-pipe 2S, hereinafter referrcd to, be detached for any reason. The outer ends of the extensions 25 are concave, and fit convex bosses 27 formed on the inner ends of taihpipes 28, which are internally or externally threaded to engage connecting lengths of pipe.

The seat sleeve retainers 26 are provided internally with notches 29, or other suitable means for engaging a tool, whereby the retainers may be rotated to screw them into and out of operative position. The external threads oi the extensions 25 engage the threads of coupling nnts 30, having flanges 31 which engage corresponding flanges formed on the tail-pipes it. The top portion of the casing preferably has an externally threaded annular extension 32, forming the upper portion oi the valve chamber, the said extension being provided with a suitable bonnet, which, as here shown, includes'tlie base portion 33 of it stuiiing box Ill. and a tlangetl coup ling nut 36, which engages the external thread of the extension 32. The valve'sleru I15 passes through the stulling box and bonnet, and is engaged with a diskcarrier 37 in su h manner that the rotation of the stem causes a valve-operating movement oi the carrier, the engagement being effected in this embodiment of my jeitt'ipg:

stem engaging an intern-.11 thread in the carrier. Tie dis- 3 16 are invention ivy a screwthreadwm the,

died with 100381 COUHBA :2 carrier, and adapied to neck or tip thereon v means which Iwill next describe.

he (-an'iei is provided at its lower portion with opposimiy jam ing arms 35. which are prefi'ably eliiptivni in form. and have convex faces engaging can ('12 v9 sucks 39 3:). iOl'l'ilfiCi on the inner Surfaces hi the disks U5, uwfn in Fig. 25, the said arms and soE-kets (ronstitmn mterlmking member \vhicli cause the dim? t0 IDOYB with {he i-m'rie's. :iltiiough permitting independant. iipping movemenzs Of i'i16(.i.i8k.. The lower "Lngs i he inner sides 0f which mreriap he outer shown in Fig.

ends of the arms 38, sic

ears -11, which engage ti 'miez' surfaces oi 30mcuupii gmembers which anniiin-i' Tang 42, .iormed m disk-holdizzg and guiumg nuts 43. which are e Qeii with screw-threaded 44, projecting;

outwardly in oppositedirecY-ions from the arms 38.

Vihen the nuts i3 are tamed to place on the i-hbzifl 44. their flanges engage the 0:53.61 01' ths ears ll. an

tmis nfine aha disks 16 an fj '1g X the disks. aq a-j at their edge purtions-tsi pan-111 i guide ribs 46, iaiml, of tiic Wall of timvaive chamby, the ma :1 engagementm" 12 the nuts :4 sition Q1 the gate at ail p. n'a'vei, and pre venting the diskwidin ind gu 'ng 11113543 from heing disengaged from the screwtineadsd studs 4% Wiiiie n the valve chaiiiber. I V g. slim-7:1 a muriified sansiauticn i01 coupling valve casi t COTJAEY? :zpe lengths, thrfmgh (ha mediumship of complemeniai finges :1 baits. This mudificminn shows one end only 02 m valve P but it will be understood shat, the bpposite and mu 7 be of the same cpnstrgction. 2O reprsems 1i fin nge formed on the a and" represents am aimular wmievf flange secur ed to ithe flange 2-?) by boits 27, the said. flange 22 ha ing on its inne 'beariu against a concave seat 25% {owned on the casing. The fiangeEZ has an outwardlyprojevting internallytlzreadedhoss-Z, adayitgad to anguage length of pipe.

in each cf the abwe-descx'ihed embodiments 0*. my inventian the dam J Iv the tailpipe S shuwn i i, and. the flange shown in Fig. 8, has a (rem/ex fac, which bears on a concave part 01' His casing surrounding the seat sleeve. These-.recipromi bearings aurrounding the 563:5 sleeves insuve a steam and liquid-tight bearing netween'fulie said detachnnie part and the casing ouiside of the seat sleeves. Any steam dr liqaid Lhaf might leak between th seat sleeves and the sockets in the casing in W ich they are iobaced, is

aim; the pmper p0" means for gn'uveut therefore prevented .ing by this said annular bearings. I

T ie sesiwieewas, adapted a r. appiied to and re- IZZOVQd. from the exterim of thacasing, and an the ends life an imnortzmt featuzre my inveng 2. war Z /e seat-$0 be immdily Yeliability 05 the parts being mispiacgq 3 st... The 'engagem the mats with the iiflhe c elsiiig prsvemrsany possibiiityef iiw ac Eta-1 m1- screwing of the nutrairom thfi studs i Lhava in one 'CW'SQU that an? si-isi: eahie with any o't'neidgsk in a salve if a *mive dis he v:

" 35* being capable quick and coiweiw 1031 in and reiimvzl' from the carrier a mi V 11y 3m 1.14. tiius insuring tin'iiughnul Ch 1 vaiv.

I claim:

1. A sate-valve comprising a casing tions to said openings. mm iHXViI marin dew. the inne of S s; can .ituii 01' iii .!'s which pmjwt him the v mchuhl v securing the sear sleeve;

dined valve for d mmum cing turned in between. id

to enga s fl ts.

2. A .5. XiVf. emnprising: n casing: having :1 valvf: uhnmher, :md npeningam: opposite ends of the chamber. said openinL'H being eMm-gd m- 1'. miter pmfinns t6 {1 "m' mumvzs, seat sleevvs detac inserted in said u'penings. and havin: flanges; zi}: ends bearing on oukluz's, and hvvemhii .Msi, Hm casingumi-"fiiecves being the rotarinzz of the provided with sleeves in the W II. :mzmlzu SPfli-ZPfflihnls detachably e "lg' the enmnin' pm'iiiuns of rmopenings. and 1;: on said 1 To gmwent UNIV-HUT] displacement of die sent 5,-nflhk carrier nmvnL-io DGI'WP 5' the valve seats. :uul vaive disks motmfld m tip 01' rock universally m said carrier.

3. A. gntwvuhie comfl'isng a. casing hm'ing nvnlfe chamber. and openings at opposite ends of the chamber, said openi I form should rs, seat sieeres removabiy inserted in said or replaced by lnew on with.

re is "no:

va disks, as waif as the seat-sieevea,

.is. anal provided with valve dmks adapted suing enlarged at their outer uortiuns i0 -fiim escaping from the valve casska in their operative reiatiqnto the carrier when the latter is renwved {mm the casing, s0 that-ti.

4. gnl. :-\'uE\'-: rumnrising; :1 casing hnvin; :i valve chamber, and upcningsnt Opposite ends ot' thu chamber,

'opunlngs being enlarged at their outer DOi'LiuiiS to, form xhoulders, the wunryed portions having intu'nnl srruw threads, while the extrrnul' portions 01' the casing surrounding said cnlnrgud lmrlions have uklurnnl screw threads. scat sleevesreumvnhly inserted in said openings nnd having flanges m, lht-ir nHLLl' ends hnurim: on said Hl'ulllllllfi, nnnulnr suzll. ll'lililH-VH vxlrruully ihrmnivil l0 engage the Siiili internal iln'muls. and in r r on suid flanges, and tailpipns lm in;- iim-rnully thrr-iuicd coupling nuts lenguged with said exlnrnnl tin-(nub, and faces adapted 110 hour upon lhc par-lions ul' thrt'nsiug surrounding the seat sleeves S. A gale-vulva comprising :i (:nsing hnviue, n vQlvo uhnmher nnd oppuscd value seals therein, :1 disk carrier nmvnblu between said seats, valve disks adnulud tv rock uuii'ursnlly on said carrier. and menus for l'unlining the disks in lurking cngngeuu-nt with flu: carrier, said menus l l l l l including toupling nminbers adjuslzihljy connected with the warrior, and cumple u-nta! coupling members on said rnlve L-ixh'S.

Q iKP-VZHVQ cOli'lpl"-iii l nv unsim; having it valve li" lllir(l and npposud valve Slill'b' viurrein, a disk carrier iunvnblu hotwuun said seats, and pi lvidmi with unpositely projecting threaded studs having nuts with annular flanges, and valve disks adapted to rock on the \urricr, and provided with wings having uuiwnrdly-pmjecting' curs engagln, said llnn res.

T. -;;ntv-rulru comprising- 11 cnsing having a valve rhnni wr and opyms rd valve aunts therein, guides on the will u! said rhnmluzr, n dink cnrriur movable hotwuon said null provided with omugsitolyprujec Hill threaded rnlvo disks; lilHlILlUd in rock unir ly nu the our v1 and pruv'ulull will! out\\*ni(ll y-p1'n ours, nnd V:li\"(-lli)11]in :nul gnidirn: nuts ungngr-al with nid slur" ud pruvulcd with ununlzir inn-4 Jilly-gir :'i.i i; 1 l'il.I;l 11:: Kill, ours on nu \il]\\-l|i. oul .\'n.rdl r-- u'njurtiug shuullh-is ruungiug: said gnillus in DI'QYUHL :irrlduutni dvlnriiuuanl 0! :mid vnlvu disk-holding 11ml llllilil unis.

lun'c nflixud my signnturv, in

. tillAliLES A uLAuLiN. \s'il uusscs 1 ll. ll. (mum-inn. 'iuus. .l. Bnuun 

